Home / 20,632.42-30,942.57-8,786.07

Finding the Fourth Proportional to 20,632.42, 30,942.57 and 8,786.07

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Solution

The fourth proportional to 20,632.42, 30,942.57 and 8,786.07 is: 13,176.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,632.42 : 30,942.57 = 8,786.07 : x
  2. Step 2: Convert to fraction form
    20,632.42/30,942.57 = 8,786.07/x
  3. Step 3: Cross multiply
    20,632.42x = 30,942.57 × 8,786.07
  4. Step 4: Simplify right side
    20,632.42x = 271,863,618.95
  5. Step 5: Solve for x
    x = 271,863,618.95/20,632.42
  6. Step 6: Final answer
    x = 13,176.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.